Question

Решайте текстовое задание, используя диаграмму Эйлера-Венна В классе 34 ученика. 29 из них ходят на рисование, а 8 из них занимаются плаванием. Сколько учащихся ходят только на рисование? Сколько учащихся занимаются плаванием? Сколько из них ходят на рисование и в то же время занимается плаванием?​

Answer 1

Пошаговое объяснение:

3 занимаются тем и другим

26 рисование

5 плавание

29+8=37

37-34=3

29-3=26

8-3=5

Answer 2

Problem Analysis

We are given the following information: - There are 34 students in the class. - 29 students are taking drawing classes. - 8 students are swimming. We need to determine: - The number of students who are only taking drawing classes. - The number of students who are swimming. - The number of students who are both taking drawing classes and swimming.

Solution

To solve this problem, we can use a Venn diagram to visualize the information. Let's represent the set of students taking drawing classes as "D" and the set of students swimming as "S". We can then use the following formulas to find the desired values:

1. The number of students who are only taking drawing classes can be found by subtracting the number of students who are both taking drawing classes and swimming from the total number of students taking drawing classes. 2. The number of students who are swimming can be found by subtracting the number of students who are both taking drawing classes and swimming from the total number of students swimming. 3. The number of students who are both taking drawing classes and swimming can be found by adding the number of students taking drawing classes and the number of students swimming, and then subtracting the total number of students in the class.

Let's calculate the values using these formulas:

1. The number of students who are only taking drawing classes: - Total number of students taking drawing classes: 29 - Number of students who are both taking drawing classes and swimming: Unknown - Total number of students in the class: 34 - Number of students who are only taking drawing classes = Total number of students taking drawing classes - Number of students who are both taking drawing classes and swimming

2. The number of students who are swimming: - Total number of students swimming: 8 - Number of students who are both taking drawing classes and swimming: Unknown - Total number of students in the class: 34 - Number of students who are swimming = Total number of students swimming - Number of students who are both taking drawing classes and swimming

3. The number of students who are both taking drawing classes and swimming: - Total number of students taking drawing classes: 29 - Total number of students swimming: 8 - Total number of students in the class: 34 - Number of students who are both taking drawing classes and swimming = Total number of students taking drawing classes + Total number of students swimming - Total number of students in the class

Let's calculate the values:

1. The number of students who are only taking drawing classes: - Number of students who are only taking drawing classes = 29 - Number of students who are both taking drawing classes and swimming

2. The number of students who are swimming: - Number of students who are swimming = 8 - Number of students who are both taking drawing classes and swimming

3. The number of students who are both taking drawing classes and swimming: - Number of students who are both taking drawing classes and swimming = 29 + 8 - 34

Calculation

Let's calculate the values:

1. The number of students who are only taking drawing classes: - Number of students who are only taking drawing classes = 29 - Number of students who are both taking drawing classes and swimming

2. The number of students who are swimming: - Number of students who are swimming = 8 - Number of students who are both taking drawing classes and swimming

3. The number of students who are both taking drawing classes and swimming: - Number of students who are both taking drawing classes and swimming = 29 + 8 - 34

Answer

Based on the given information, we can calculate the following:

1. The number of students who are only taking drawing classes: [[29 - Number of students who are both taking drawing classes and swimming]] 2. The number of students who are swimming: [[8 - Number of students who are both taking drawing classes and swimming]] 3. The number of students who are both taking drawing classes and swimming: [[29 + 8 - 34]]